FitMyLensthe lens-by-mount reference

Sony FE 50mm f/1.4 GM vs Sigma 50mm f/1.4 DG DN Art

Both are Sony E mount primes for portrait and low-light — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.

Last verified 2026-06-21 · Sony E mount · prices change — check the retailer

SpecSony FE 50mm f/1.4 GMSigma 50mm f/1.4 DG DN Art
Focal length50mm50mm
Max aperturef/1.4f/1.4
Typeprimeprime
Coveragefull-framefull-frame
MountSony ESony E

Which should you buy?

Where to buy

Check the Sony FE 50mm f/1.4 GM price on Amazon →

Check the Sigma 50mm f/1.4 DG DN Art price on Amazon →

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FAQ

What's the difference between the Sony FE 50mm f/1.4 GM and the Sigma 50mm f/1.4 DG DN Art?
The Sony FE 50mm f/1.4 GM is 50mm f/1.4 prime, full-frame; the Sigma 50mm f/1.4 DG DN Art is 50mm f/1.4 prime, full-frame. Both fit the Sony E mount.

Do the Sony FE 50mm f/1.4 GM and Sigma 50mm f/1.4 DG DN Art fit the same camera?
Yes — both are Sony E mount lenses, so they fit Sony a7/a9/a1 (full-frame) and a6000-series (APS-C).

More Sony E comparisons: Sony FE 40mm f/2.5 G vs Sony FE 50mm f/2.5 G · Sony E 15mm f/1.4 G vs Sigma 16mm f/1.4 DC DN Contemporary · Sony FE 20-70mm f/4 G vs Tamron 20-40mm f/2.8 Di III VXD · Sony FE 24mm f/1.4 GM vs Sigma 24mm f/1.4 DG DN Art · all Sony E lenses · all comparisons